EP1898256A3 - High aperture liquid crystal display including thin film diodes, and method of making same - Google Patents

High aperture liquid crystal display including thin film diodes, and method of making same Download PDF

Info

Publication number
EP1898256A3
EP1898256A3 EP07120810A EP07120810A EP1898256A3 EP 1898256 A3 EP1898256 A3 EP 1898256A3 EP 07120810 A EP07120810 A EP 07120810A EP 07120810 A EP07120810 A EP 07120810A EP 1898256 A3 EP1898256 A3 EP 1898256A3
Authority
EP
European Patent Office
Prior art keywords
thin film
electrode
liquid crystal
film diode
crystal display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07120810A
Other languages
German (de)
French (fr)
Other versions
EP1898256B1 (en
EP1898256A2 (en
Inventor
Willem Den Boer
John Z.Z. Zhong
Vijayen S. Veerasamy
Yiwei Lu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Display Co Ltd
Original Assignee
LG Philips LCD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Philips LCD Co Ltd filed Critical LG Philips LCD Co Ltd
Publication of EP1898256A2 publication Critical patent/EP1898256A2/en
Publication of EP1898256A3 publication Critical patent/EP1898256A3/en
Application granted granted Critical
Publication of EP1898256B1 publication Critical patent/EP1898256B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1365—Active matrix addressed cells in which the switching element is a two-electrode device
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/367—Control of matrices with row and column drivers with a nonlinear element in series with the liquid crystal cell, e.g. a diode, or M.I.M. element
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/088—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements using a non-linear two-terminal element
    • G09G2300/0895—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements using a non-linear two-terminal element having more than one selection line for a two-terminal active matrix LCD, e.g. Lechner and D2R circuits

Abstract

In a liquid crystal display including a first substrate (43), a second substrate (41), a liquid crystal layer (7) disposed between said first (43) and second (41) substrates, and a plurality of pixels for displaying an image to a viewer, the improvement comprising:
at least one of the pixels including a first thin film diode (10) and a color filter (61) each disposed on said second substrate (41), wherein said first thin film diode (10) includes a first electrode (8), a second electrode, a semi-insulator layer (54) disposed between said first electrode (8) and said second electrode;
and wherein said color filter (61) has a first contact hole defined therein, and a pixel electrode (8) in said at least one pixel being in electrical communication with said first thin film diode through said first contact hole,
wherein said pixel electrode is substantially transparent to visible light, and wherein said pixel electrode directly contacts said semi-insulator layer (54) through said first contact hole so as to form said first thin film diode (10), and wherein said first thin film diode (10) is a non-linear resistance element, and wherein said color filter (61) is photo-imageable and has a dielectric constant value of less than about 5.0.
EP07120810A 1998-03-13 1999-03-15 High aperture liquid crystal display including thin film diodes, and method of making same Expired - Lifetime EP1898256B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/041,743 US6008872A (en) 1998-03-13 1998-03-13 High aperture liquid crystal display including thin film diodes, and method of making same
EP99105267A EP0942315B1 (en) 1998-03-13 1999-03-15 High aperture liquid crystal display including thin film diodes, and method of making same

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP99105267.1 Division 1999-03-15
EP99105267A Division EP0942315B1 (en) 1998-03-13 1999-03-15 High aperture liquid crystal display including thin film diodes, and method of making same

Publications (3)

Publication Number Publication Date
EP1898256A2 EP1898256A2 (en) 2008-03-12
EP1898256A3 true EP1898256A3 (en) 2008-04-23
EP1898256B1 EP1898256B1 (en) 2012-06-27

Family

ID=21918097

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99105267A Expired - Lifetime EP0942315B1 (en) 1998-03-13 1999-03-15 High aperture liquid crystal display including thin film diodes, and method of making same
EP07120810A Expired - Lifetime EP1898256B1 (en) 1998-03-13 1999-03-15 High aperture liquid crystal display including thin film diodes, and method of making same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99105267A Expired - Lifetime EP0942315B1 (en) 1998-03-13 1999-03-15 High aperture liquid crystal display including thin film diodes, and method of making same

Country Status (3)

Country Link
US (2) US6008872A (en)
EP (2) EP0942315B1 (en)
DE (1) DE69939851D1 (en)

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Also Published As

Publication number Publication date
EP1898256B1 (en) 2012-06-27
US5926236A (en) 1999-07-20
US6008872A (en) 1999-12-28
EP1898256A2 (en) 2008-03-12
EP0942315A3 (en) 2000-05-03
EP0942315A2 (en) 1999-09-15
DE69939851D1 (en) 2008-12-18
EP0942315B1 (en) 2008-11-05

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